Starting and stopping mechanism for engines.



A. D. EBERLY. STARTING AND STOPPING MECHANISM FOR ENGI'NES.

APPLICATION FILED MAR. 4| l9l6.

' Patented Feb 2 SHEETS-SHEET I- Elma/Mo's A. D. EBERLY. STARTING'AND STOPPING MECHANISM FOR ENGINES.

APPLICATION FILED MAR. 4. I916.

Patented Feb. l3 1917. I

2 SHEETSSHEET 2- UNITED STATES PATENT OFFICE.

AUSTIN ID. EBERLY, 0F SPOKANE, WASHINGTON.

STARTING AND STOPPING MECHANISM FOR. ENGInEs.

To all whom it may concern:

Be it known that I, AUsTIN D. EBERLY,

a citizen of the United States, residing at Spokane, in the county of Spokane and State of Washington, have invented certain new and useful Improvements in Starting and Stopping Mechanisms for Engines, of which the following is a specification.

This invention relates to new and useful improvements in starting and stopping mechanisms for engines, and more particularly to engines utilizing electric starters, and the primary object of the invention is to provide a device which will automatically start the motor at a predetermined temperature and also stop the same automatically at a predetermined increased temperature.

. causes considerable damage to the motor.

My invention contemplates the provision.

of a thermostatic switch mechanism which, at the predetermined low temperature, will operate the electric starter of the automobile and' cause the engine to be started and which will further operate to stop the motor when the latter has become heated to a predetermined higher temperature.

Still another. object of the invention resides in the provision ofan auxiliary magnetic switch operating with the starter of the engine separately from the starting switch stopper'of. the machine.

A still further object resides in the provision ofan'ignition switch in direct cooperation with the thermo-operated switch to cooperate with the vibrator, whereby to send a spark to the engine.

A still further object resides in provid-" Specification of Letters Patent.

one which will be very efficient and useful in operation. g

With these and other objects in view, my invention consists in the novel features of construction, combination and arrangement of parts, as will be hereinafter referred to and more particularly pointed out in the specification and claims.

In the accompanying drawings, forming a part of this application Figure l is a diagrammatic View showing the method of attachment and the wiring of the complete device applied to use on an automobile.

Fig. 2 is an elevation of the interior of the thermo operated switches, the cover be ing removed from the device.

Fig. 3 is a detail section through Fig. 2 as seen on the line 3-3.

Fig.4 is a perspective view of the ignition switch removed.

Fig. 5 is an inverted perspective View of the thermo switch mechanism removed.

In describing the invention I shall refer to the drawings, in which similar reference characters designate corresponding parts throughout the several views, and in which 1 starter being manually operated by means of a starting switch 5. This starting switch is mounted, as usual, on the dashboard 4 of the automobile, and the switch connects with the starter by means'of the wire 6. An ignition switch 7 of the usualtype is also suitably mounted on the automobile, the same connecting through the medium of a wire 8-through a vibrator 9 and a wire 10 which also leads from the switch 7 is grounded, as usual, on the frame of the automobile.

The thermo operated switch is composed of a frame or casing -11 which is secured by means of straps or clamps 12 to the exhaust pipe 13 of the motor, and wing portions 14 are provided on the casingll whereby said straps or clamps may engage the same. Set screws 15 are adjustably carried on the wing portions to enable the casing 11 to be drawn nearer or farther from the exhaust pipe, as maybe desired;

A pair of bearing plates or the like 16 Patented Feb. 13, 1917. Application fil ed March 4, 1916. Serial No. 82,194. i

are secured to the inner wall cfthe casing 11 by means of the brackets or the like 17 and suitably arranged between said bearing plates is a thermal expandingand con end of the link 21 is connected to a switch above its fulcrum point is a linking lever 27 lever 23, the latter being fulcrumed intermediate of its ends at-a point designated at 24. The lower end of the lever vided with a pair of contacts 25 which are designed to cooperate with a pair of contact posts 26 which are mounted in the side wall of the casing 11.

Pivotally connected to, the lever 23 just which has its ends compoundly curved, the

lower end thereof being slightly reduced in.

cross-section as designated at 29. A turnbuckle 28 is also provided on the link 27 to accommodate adjustment of said link for obvious purposes. A. post 30 is suitably mounted in the bottom of the casing 11 to extend verticallyand has its upper end provided with an opening to receive therethrough the reduced lower end 29 of the link 27. Aroller 31 is provided at this upper end of the post to receive said reduced end 29 in contact therewith.

Mounted in the adjacent side wall of the casing 11 is a post 32 which is bifurcated .and designed to act as a fulcrum for a in Figs. 21,

forked lever 33, as clearly shown 3 and 4 of the drawings. A spring member 34 has one end thereof connected to the lower'end of the link 27 and its opposite end is connected with the upper portion of the lever 33 as clearly shown in Figs. 3 and 4. The extreme upper portion of the lever 33 is provided with a pair of contacts35 which are designed for contact with a pair of contact posts 36, the latter being suitably mounted in the adjacent side wall of the elements best casing 11.

Leading from the contact posts 26 are the wires 37 which connect with a pair of con tacts on a magnetic switch member 38, the

latter being interposed between the thermo switch and the starter 3.

lit will be readily understood that when the temperature reaches a predetermined degree and causes the contraction of the spring member 18, the lever 23 will be on erated to complete the circuit above men tioned whereby to start the engine automati-= cally. lit will be seen from Fig. 1 that the magnetic switch 38 and the starter 3is had through the medium of wires .42 which intersect the wires 6. beyond the starting switch 5, so that the start- 23 is protor.

ing mechanism may be actuated through this mechanism, regardless of the operation of said switch 5..

At the same time the lever 23 is actuated I It will thus be seen that the engine is set in operation automatically, and after run-" ning for a certain length oftime, the heat emanating therefrom will cause the spring 18 to expand, which obviously opens the circuits above mentioned, and stops the m0- The starter switch 23 is opened by the first expansion of the thermal spring 18 serving to cut ofi the starter. The ignition switch 35 remains in contact until full expansion of the thermal spring 18 is had and the motor has reached ture. In this manner it will be seen that the freezing of the engine will be prevented, it being of course understood that the device is set for operation at a temperature above the freezing point. Tn order to afi ord a means for conveying the heat to the'thermal switch mechanism, a copper conductor (not shown) may be provided, and I have provided an opening at in the rear wall of the casing 11 whereby this conductor may be introduced into the device. The conductor when used will, of course, be arranged for contact with the exhaust pipe.-

hrom the foregoing description of the construction of my improved mechanism, the operation thereof and the manner of applying the same to-use, will be readily un derstood, and it will be seen that T have provided a simple, inexpensive, and eficient means for carrying out the objects of the invention. While I have particularly described the adapted to perform the functions set forth, it is obvious that various changes in the form, proportion and in the minor details of construction may be resorted to without departing from the spirit or. sacrificing any of the principles of the invention, what mentioned lever, engaging contact means therefor; a linking member for connecting said levers, and a yielding connecting member for connecting said linking member and said additional switch lever.

2. In a thermostatic switch of the class described, a casing, an expanding and contracting spring suitably mounted therein, a shaft operated by said spring, a switch lever fulcrumed within the casing and having adjustable connection .with said shaft, a pair of contacts carried on one end of said switch lever, a pair of contact posts mounted in the casing for engagement therewith, an additional switch lever fulcrumed within the casing, a linking member connected with the first mentioned switch member, and a yielding connection between said linking member and said last mentioned switch lever, whereby to operate the latter upon the operation of the first mentioned switch lever.

3. In a switch member of the class described, a casing adapted to be secured adjustably to an exhaust pipe, an expanding and contracting spring member suitably mounted in said casing, a switch lever fulcrumed within said casing and having adjustable connection with said spring member, electrical contact members on said lever, additional contact members on said casing for engagement therewith, a fork-like switch lever fulcrumed within said casin and having contact members at one end thereof, additional contact members carried on the casing adapted for engagement with the last mentioned contact members,"a linking member connected at its one end with said first mentioned switch lever, a guiding support for the opposite end of said linking member, the last mentioned end of said linking member being directed between the arms of said second mentioned switch lever,

and a coil spring member engaged with the,

lower end of said linking member and the crown of said fork-like switch lever, whereby to operate the latter upon the operation of the first switch lever.

In testimony whereof I afiix my signature.

AUSTIN D. EBERLY. 

